Why does apt-get fail to resolve the mirror?

yes, the name server update does work and if it does work then you’ve probably updated your IP settings to be static and your server can no longer resolve URLs. Try the above and if it works reboot. if it fails after rebooting then do this:

edit the template file for the resolv.conf. Ubuntu server rebuilds this every boot.

sudo vi /etc/resolvconf/resolv.conf.d/tail

#add just these two lines >>

then save the file
then restart the service:

sudo /etc/init.d/resolvconf restart and are just googles Name Servers. You should be able to add in your own ISP’s if you want. if you don’t like vi use nano or vim. I figured it out reading this: http://www.cyberciti.biz/faq/ubuntu-linux-configure-dns-nameserver-ip-address/ so credit to them for the tip 🙂

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